====== UO Protocol 0xE3 ======

Something with encryption

<code>
byte[1] packet cmd (0xe3)
byte[2] packet length
byte[4] length base
byte[length base] base
byte[4] length prime
byte[length prime] prime
byte[4] length public key
byte[length public key] public key
byte[4] unkD (0x00000020)
byte[4] length iv
byte[length iv] iv 
</code>